Pith Number

pith:YLFCNUIA

pith:2009:YLFCNUIAWVNFFN27MXXKZOD32P

not attested not anchored not stored refs pending

Monitoring Supergiant Fast X-ray Transients with Swift. Results from the first year

2), (2) INAF-IASF Milano, (3) Psu, (4) Universita' Insubria, (5) NASA/GSFC, 6), (6) USRA, (7) Universita` di Ferrara), C. Guidorzi (7), C. Pagani (3), D.N. Burrows (3), E.A. Hoversten, G. Cusumano, H.A. Krimm (5, J.A. Kennea, J. Cummings (5), L. Ducci (4, L. Sidoli (2), N. Gehrels (5) ((1) INAF-IASF Palermo, P. Romano (1), S. Vercellone (1), V. La Parola, V. Mangano (1)

arxiv:0907.1289 v1 · 2009-07-07 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YLFCNUIAWVNFFN27MXXKZOD32P}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T15:57:07.803845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2ca26d100b55a52b75f65eeacb87bd3dfbd5c120246f279f57af2bb0364be37

Aliases

arxiv: 0907.1289 · arxiv_version: 0907.1289v1 · doi: 10.48550/arxiv.0907.1289 · pith_short_12: YLFCNUIAWVNF · pith_short_16: YLFCNUIAWVNFFN27 · pith_short_8: YLFCNUIA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YLFCNUIAWVNFFN27MXXKZOD32P \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c2ca26d100b55a52b75f65eeacb87bd3dfbd5c120246f279f57af2bb0364be37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "becffd36a95982a241cfca3c03457c7154b6e01fcd20e4eff1b573cfc7f11915",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-07T20:00:07Z",
    "title_canon_sha256": "52f38f21174562febacd1164039052079e79cd47d6d7d2ca9f39ae4ed4ddd486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1289",
    "kind": "arxiv",
    "version": 1
  }
}